| must_return_empty_Optional_when_no_new_pair_is_put_1 | 00:00:00.010 | Sat May 18 04:47:10 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_2 | 00:00:00.012 | Sat May 18 04:47:11 UTC 2019 | PASS |
| must_return_empty_Optional_when_no_new_pair_is_put_3 | 00:00:00.003 | Sat May 18 04:47:11 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_1 | 00:00:00.011 | Sat May 18 04:47:11 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_2 | 00:00:00.002 | Sat May 18 04:47:11 UTC 2019 | PASS |
| must_return_the_new_key_when_a_new_pair_is_put_3 | 00:00:00.012 | Sat May 18 04:47:11 UTC 2019 | PASS |